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Search results for: BIOMECHANICAL STUDY
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Modelling and diagnostics of a traction transformer - a case study
PublicationW niniejszym artykule przedstawiono wyniki badań w dziedzinie diagnostyki kolei elektrycznych. Zostały one przeprowadzone przez międzynarodowe przemysłowo-akademickie konsorcjum w ramach projektu europejskiego (6-go programu ramowego). Skupiono się na modelowaniu transformatora trakcyjnego z myślą o rozwinięciu nieinwazyjnej metody diagnostycznej w czasie rzeczywistym. Model przeznaczony do badań finalnych został rozwinięty w oparciu...
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Heterogeneous soil behavior. Mechanical study of mixtures
PublicationW pracy opisano właściwości gruntu niejednorodnego w postaci mieszaniny budowanej ze żwiru i piasku w różnych proporcjach. Mieszanina ma właściwości typowe ośrodków ziarnistych. Badania przeprowadzono w aparacie trójosiowego ściskania. Jako wynik uzyskano, że wraz ze wzrostem procentowej zawartości żwiru rośnie kąt tarcia wewnętrznego mieszaniny i jej zagęszczenie oraz wartość jej wytrzymałości na ścinanie.
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Esplanade Riel footbridge, Winnipeg, Canada - a study
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A study on performance of planing-wing hybrid craft
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Hospital chaplains facing the pandemic. A qualitative study
PublicationThe article explores hospital chaplains perspective on the impact of the coronavirus pandemic on the provision of spiritual care in Poland. Semi-structured interviews with sixteen hospital chaplains providing spiritual care in hospitals during the COVID-19 pandemic were performed. Six main themes emerged during the interviews: chaplains' experience of the pandemic, chaplaincy during the outbreak, patients' needs, health professionals...
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On the Absolute Stereochemistry of Tolterodine: A Circular Dichroism Study
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A study of flow boiling heat transfer in minichannels
PublicationW pracy przedstawiono badania eksperymentalne wrzenia w przepływie w minikanale o średnicy wewnętrznej 2.3mm i długości 38cm. Uzyskano rozłady temperatury wzdłuż ścianki kanału oraz lokalne współczynniki przejmowania ciepła. Dane skorelowano z korelacją półempiryczną uzyskując zadowalającą zgodność.
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A case study of constructing decisional DNA on finanse
PublicationPrzedstawiono koncepcję i rozwiązanie analityczne opisu rynku finansowego przy pomocy reprezentacji wiedzy zwanej ''decyzyjne DNA''.
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An experimental study on transducer for the dds technology demonstrator
PublicationPrzedmiotem artykułu jest cylindryczny wieloelementowy przetwornik ultradźwiękowy wykonany w technologii DDS - demonstratora. Opisane zostały własności szerokopasmowego promieniowania przetwornika którego elementy zostały wykonane z piezokompozytowego materiału. W artykule zamieszczono wyniki badań wycinka próbnego - wykonanego z trzech elementów piezokompozytowych.
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An Experimental and Numerical Study of the Vortces Generated by Hydrofoils
PublicationArtykuł przedstawia wyniki projektu badawczego poświęconego wirom generowanym przez płaty nośne. W części eksperymentalnej wykonano anemometrem laserowym pomiary pól prędkości w poprzecznych przekrojach wirów. W częsci numerycznej przeprowadzono obliczenia używając różnych struktur siatki obliczeniowej i różnych modeli turbulencji. Na podstawie porównania wybrano model turbulencji i strukturę siatki najlepiej odzwieciedlające pole...
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An experimental study of high-hydrogen welding processes
PublicationThis paper presents investigation results of determination of the diffusible hydrogen content in deposited metal obtained by means of two most often used methods-the glycerin method and the mercury method. Relation has been defined between results of those methods in the area characteristic of low-hydrogen as well as high-hydrogen welding processes. Relations available in the literature do not include the diffusible hydrogen content...
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Experimental and Numerical Study on Pounding of Structures in Series
PublicationPounding between structures in series during earthquakes may cause serious damage in the structural elements. The aim of this paper is to show the results of an experimental and numerical study that is focused on pounding between more than two structures which may be described as “structures in series”. In this study, the shaking table experiments, as well as the numerical analyses, were performed using three tower models including...
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Molecular hydrogen solvated in water – A computational study
PublicationThe aqueous hydrogen molecule is studied with molecular dynamics simulations at ambient temperature and pressure conditions, using a newly developed flexible and polarizable H2 molecule model. The design and implementation of this model, compatible with an existing flexible and polarizable force field for water, is presented in detail. The structure of the hydration layer suggests that first-shell water molecules accommodate the...
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DETERMINATION OF THE CITY CENTRE. STUDY FOR THE TROJMIASTO AGGLOMERATION
PublicationDetermination of the centre of the city or agglomeration or generally the geographic area is a task which is often undertaken as part of the promotional actions realized by local authorities or directly by inhabitants. Nowadays, especially due to the development and availability of positioning technology and satellite imaging, this job is undertaken within the framework of general didactic tasks and group projects during the study...
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Suitability study of hybrid model of electrodynamic actuator
PublicationThe paper presents the proposal of the hybrid circumferential model of an electrodynamic actuator. The field model uses the inductor current as the input data which is obtained from the circumferential model or experimentally.
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Contextualizing a Knowledge Base by Approximation – A Case Study
PublicationModular knowledge bases give their users opportunity to store and access knowledge at different levels of generality. In this paper we present how to organize a modular knowledge bases organized into contexts in which a user can express their knowledge in much simplified way, yet without losing its precision. The work is centered around the notion of approximation - i.e. reducing the arity of predicates used. The presentation is...
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Case study methodology. Few conceptual considerations.
PublicationThis paper contributes to the debate on case study as methodological approach. It shows several issues concerning its major advatangeus and disadvantageus
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Study of displacements of a bridge abutment using FEM
PublicationSteel sheet piles are often used to support excavations for bridge foundations. When they are left in place in the permanent works, they have the potential to increase foundation bearing capacity and reduce displacements; but their presence is not usually taken into account in foundation design. In this article, the results of finite element analysis of a typical abutment foundation, with and without cover of sheet piles, are presented...
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Searching for smart solutions:Comparative study of Gdansk and Glasgow
PublicationThis chapter is the executive summary of undertaken comparative study between Gdansk and Glasgow.
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Suitability study of hybrid model of electrodynamic actuator
PublicationThis paper presents the proposal of the hybrid circuit-field model of an electrodynamic actuator. The field model uses the inductor current as the input data which is obtained from the circuit model or experimentally. The field model implemented using the FLUX program makes it possible to easily determine the pressure distribution acting on the disc. The results have been verified experimentally.
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Trust management in WSN - case study evaluation
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Trolleybuses in the city of Gdynia. A historical and geographical study
PublicationW artykule przedstawiono historię, stan obecny oraz plany rozwoju gdyńskiej sieci trolejbusowej
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An Experimental and Numerical Study of Tip Vortex Cavitation
PublicationArtykuł przedstawia eksperymentalne i numeryczne badanie kawitujacych wirów wierzchołkowych. Eksperymenty przeprowadzono w tunelu kawitacyjnym na modelu płata nośnego, wykonując pomiary pola prędkości wokół wiru przy pomocy metody Particle Image Velocimetry (PIV). Równolegle przeprowadzono numeryczne symulacje kawitującego wiru wierzchołkowego dla różnych parametrów przepływu. Symulacje wykonano programami Fluent i CFX, stosując...
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Study of the atomic structure and morphology of the Pt3Co nanocatalyst
PublicationThe local structure and chemical disorder of a commercially available Pt3Co nanocatalyst supported on high surface area carbon were investigated. High-quality XAFS spectra were collected at the ELETTRA synchrotron XAFS 11.1 beamline. XAFS spectra analysis have been performed accounting for the reduction of the coordination number and degeneracy of three-body configurations, resulting from transmission electron microscopy (TEM)...
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Study on polymer modified road asphalt mixture
PublicationThe formulation of ternary asphalt-additives blend composed of crumb rubber : low-density polyethylene (CR : LDPE) and crumb rubber : textile fiber (CR : TF) couples, and quaternary asphalt additives-blend composed of (CR : LDPE : TF) triplets on the virgin asphalt to optimize the asphalt basic and rheological properties and to use the extrusion process of two or three additives to obtain composite materials of them, as well as...
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Labour resources in Kazakhstan and Uzbekistan - a comparative study
PublicationThe aim of the paper is to show the transformation and comparison of labour resources in Kazakhstan and Uzbekistan using the following methods: deductive data analysis, observation of changes in the structure of resources based on publicly available macroeconomic data. During the two decades of the 21st century, both countries experienced population growth which translated into an increased number of persons of working age. In...
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A longitudinal study of e-commerce diversity in Europe
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Raman Study on Doped Multiwalled Carbon Nanotubes
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Study on hydrogen uptake of functionalized carbon nanotubes
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Resonance Raman Study on Carbon Nanotubes Formation
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Numerical and Experimental Study of Tidal Turbine Performance
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Numerical and Experimental Study of Tidal Turbine Performance
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A study of concentration depolarization and quenching of photoluminescence of solutions
PublicationThe concentration-dependence of emission anisotropy r/r0 and quantum yield eta/eta0 of the photoluminescence of glycerol-water solutions of rhodamine B in two systems of viscosities 7.4 P and 0.72 P is investigated. The experimental data are compared with the new theory of concentraticn depolarization (J. Lumin., 5, 413 (1972)) and concentration quenching of photoluminescence (Acta Phys. Hungar., 30, 145 (1972)), which takes...
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COLOUR TERMS IN INORGANIC CHEMISTRY: A CORPUS STUDY
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A Contribution to the Study of the Antidust Respirators’ Real Performance
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Modeling Study and Performance Investigation of a Thermoelectric Refrigerator
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Interpres: rivista di studi quattrocenteschi
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Studi Micenei ed Egeo-Anatolici
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Studi e Saggi Linguistici (SSL)
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Gli Uffizi: studi e ricerche
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Confluenze-Rivista di Studi Iberoamericani
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Lares-Quadrimestrale di Studi Demoetnoantropologici
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Rivista di Studi Politici Internazionali
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Studi irlandesi-A Journal of Irish Studies
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Versus-Quaderni di Studi Semiotici
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Rivista di Studi sulla Sostenibilita
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Diacronie. Studi di Storia Contemporanea
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3D model of osteoarthritic (OA) knee joint for analysis of the medial meniscus biomechanics - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. In the OA model thickness of articular cartilage and material parameters of the cartilage and menisci were reduced to simulate degenerative changes in the...
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A comparative study of English viseme recognition methods and algorithm
PublicationAn elementary visual unit – the viseme is concerned in the paper in the context of preparing the feature vector as a main visual input component of Audio-Visual Speech Recognition systems. The aim of the presented research is a review of various approaches to the problem, the implementation of algorithms proposed in the literature and a comparative research on their effectiveness. In the course of the study an optimal feature vector...
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In Search of Naval Beauty. Historical Study of Ship Architecture
PublicationDesigning ships is no mean achievement. In the old days, constructors focused on making their ships visually appealing, while paying scant regard to the living conditions of the crew. Such an approach reflected the state of the art in ship building at the time as well as the social order prevalent in those days. A breakthrough came no earlier than at the turn of the 19th / 20th centuries. The industrial revolution brought along...